Machine for winding edgewise and spacing metal strips.



H. G. SAHLIN.

MACHINE FOR WINDING EDGEWISE AND SPACING METAL STRIPS.

APPLICATION FILED OCT. 16.19!!- l lfilfi l Q Patented Aug. 31, 1915.

4 SHEETS-SHEET l.

H. G. SAH LIN.

MACHINE FOR WINDING EDGEWISE AND SPACING METAL STRIPS.

APPLICATION F'ILED ocT.16.1911.

1 9 1 5 1 72 1 .1, Patented Aug. 31, 1915.

4 SHEETS-SHEET 2.

H. G. SAHLIN.

MACHINE FOR WINDING EDGEWISE AND SPACING METAL STRIPS.

APPLICATION FIkED OCT. I6. I9II.

Patsnted Aug. 3L 1915.

4 SHEETS-SHEET 34 \X/I'FHEEEEE:

H. G. SAHLIN.

MACHINE FOR WINDING EDGEWISE AND SPACING METAL STRIPS.

APPLICATION FILED OCT. 16.19ll.

1 151 7210 Patented Aug. 31, 1915.

4 SHEETSSHEET 4.

l l N 1 TE TATE PATNT @FFTDE.

HENNIN G G. SAHLIN, OF ROME, NEW YORK. ASSIGNOR T0 GEORGE W. TURNEY, 0FROME, NEW YORK.

MACHINE FOR WINDING: EDGEWISE AND SPACING METAL STRIPS.

Application filed October 16, 1911.

To all who 12bit may concern Be it known that I, HENNING G. SAHLIN, ofRome. in the county of Oneida and State of New York. a citizen of theUnited States, have invented new and useful Improvements in Machines for\Vinding Edgewise and Spacing Metal Strips, of which the following is aspecification.

My invention relates to machines for winding metal strips or ribbonedgewise and spacing the ribbons during the winding operation along thelength of a cyhnder. When the cylinder is a tube, such a product isuseful in the construction of radiators for automobiles where a largecooling surface is required in a small compass and where thereforeregularity of spacing is very desirable to use thespace mosteconomically.

In my specification I have for convenience referred to the cylinder as atube and it is so shown in the drawings.

The preferred form of my invention is shown in the drawings, in which-Figure l is a side view of a machine embodying my invention, Fig. 2being a rear view. Fig. 3 is a section of the r bbonforming head. Fig. ibeing a front view of the winding form and its holder, and r lg. 5 a topview thereof. Fig. 6 is a front view of the winding head. Fig. 7 is aface view of the spreader. Fig. 8 is a section on line 88 of Fig. 7.Fig. 9 is a sectional view of the tube coupler in action. Fig. 10 is anelevation of the tube coupler in action and Fig. 11 is a section on line1111 of Fig. 10.

A, A are uprights partly shown and suitably supported and forming withthe yoke piece A (shown only in part) bearings and supports for thevarious parts.

B is the metal tube or core on which is wound the metallic ribbon C bywhich the radiating surface of the tube is increased. The tube is heldfrom rotating, but is fed forward progressively at an even speed bymeans described below. The tube or core B passes through the center ofthe rotatable sleeve D. The sleeve D carries at its forward end anenlargement 03 which is recessed to receive a boss E extending rearwardfrom the detachable disk E The reel on which the metal ribbon is woundis lettered F and is mounted to turn on and independently of theenlargement d and between the disk E and a disk G which carries arearwardly-projecting hub G at Specification of Letters Patent.

Patented Aug. 311, It 915.

Serial No. 654,846.

tached to the enlargement d by the screw 9. The screw 9 passing throughthe hub G- into a recess on the boss 1 also secures the detachable diskE to the sleeve D while the machine is in operation. The disk E must betaken off when a new supply of ribbon is to be put onto the reel F. Thedisks E and G thus rotate with the sleeve D and between them is the rollof the metallic ribbon C wound on the reel F which is free to turnindependently of the disks and sleeve as the ribbon is drawn off. On theface of the disk E is a guide roll E set on a stud at an angle to theface of the disk as shown and over which the ribbon is led to the holderH which is also mounted on the face of the disk E The ribbon is thusgiven a partial turn on the way to the tube B on which it is to be woundedgewise.

H is a winding form threaded on its perlphery to screw into the threadedinterior of the holder H. The holder H is provided with a guidewayh-Ae'tiding to the winding form H and havin'g a cover k to cover theguideway. The winding form H has a central opening which registers withthe opening in the sleeve-D and is just large enough to allow the tube Bto pass through it and be centered therein.

The winding form H is preferably machined from a steel cylinder. Aspiral passage k forms it into a continuous spiral strip which may be ofany desired pitch according to the pitch at which the ribbon is to bewound on the tube. The thread in the holder is cut to correspond so thatthe form will screw into the holder, a separate holder being used foreach form. This passage serves as a die for the ribbon to lead itspirally to the tube and also to hold it in place while the form isturned so that said ribbon will be properly spaced upon the tube,

and for this purpose the form preferably has a number of turnscommunicating with the central opening in the die which receives thetube or core, so that the ribbon shall not emerge from the form until ithas firmly adjusted itself in place and also so that said form may beadjusted as below described when it has begun to wear.

, The die by which the bending of the ribbon is accomplished comprisesthe following parts :-In the guideway 71. is a guidestrip 72. which iscurved at its lower end as at k to conform to the curvature of the formH The guidestrip is about 1/64 of an inch thicker than the thickness ofthe ribbon and forms one side of the guideway, its edge against whichthe ribbon bears being slightly grooved to aid in its function as aguide. It is sufficiently long to lie within the spiral passage in theform and hold the ribbon against the tube, preventing its reaction. Theguideway in the holder is at a slight angle to theaxis of the tube so asto lead the ribbon to the passage in the form in a plane parallel to theside of the said passage. The

lane of the ribbon is thus turned by the roll 1 and the guidewayapproximately 90 in its delivery to the form.

hub j and is free to turn on the sleeve.

The spiral is cut to any desired pitch and the sides of the passage arenot flat, but are so cut that the inner portion of the passage borderingon the central opening for a width equal to the width of the ribbon isequal to the width of-the ribbon, while the receiving outer portion ofthe passage is about 1/64 of an inch wider to enable it to receive theend of the guidestrip k which sets into it to hold the ribbon againstthe tube as above referred to. Thus the ribbon at the point where itenters the winding form is closely confined between four walls of whichthe tube is one, and held firmly while it takes its said shape so thatthere is no tendency to wrinkling or crumpling.

I prefer to make the winding form somewhat longer than would otherwisebe necessary in order that as it wears it may be screwed into or outfrom the holder to present new surfaces to the ribbon. I prefer to makethe holder as shown in the form of a strap, the ends k and k of which"are clamped together by the screw If. A screw 71. attaches the holder tothe face of the disk E In the machine shown the sleeve D is mounted inuprights A, A and is rotated in the following manner: On the sleeve D ismounted a friction disk J provided witlba n its opposite side the disk Jhas a recessed hub 3' having a face cam j. A hollow hub j is keyed tothe sleeve D to slide thereon and turn therewith, and between the huband the bearing in upright A are ball bearlngs j suitably mounted toreduce friction. The hub j also has a face cam like that on hub j thesecams taking up automatically the wear of the friction rolls k and belowdescribed. A spring 9' in the chamber in hubs i 9' tends to throw thedisk J against the friction roll is.

J is a second friction disk which is mounted on a shaft J 2 preferablyin the same seems best. A vertical shaft K has keyed to each end afriction roll, one of which In engages the disk J and the other 70 thedisk J The shaft K is mounted in a sleeve is which slides in a bearing Kbolted to the upright A and by means of it power is transmitted fromdisk J to disk J. The relative speed of these disks is regulated bymeans of a rack 70 on the sleeve 70 with which a segment 70 engages,this segment being mounted on the upright A and operated by the handle Kso that the sleeve 70 may be raised or lowered and so move the frictionrolls is, la and their shaft along radii of the friction disks. Thefriction disk J has a recess J" near its center so that by moving thebearingK sufiiciently far downward the friction roll is will be movedtoward the center of the disk J and opposite the recess and out ofcontact with the disk so that-it will not be moved by the disk.

An important advantage of this friction drive lies in the fact that bymoving the lever or handle K the friction rolls 7c, 70 aresimultaneously moved along the surface of the disks J, J so that thespeed of rotation of the driven portion of the machine may be veryreadily and simply adjusted with great accuracy and the machine itselfmay be almost instantly stopped by so moving the parts that the roll 70will be opposite to the recess J 3 in the disk J so that the rotation ofthe disk J will not affect the friction roll 70 and hence no power willbe conveyed to the disk J.

The sleeve D carries at its rear end a gear L which meshes with anintermediate gear L in mesh with a gear L mounted on a stud L secured toupright A and supported by bracket R. The gear L has an elongated hub onwhich is cut a Worm Z so that the rotation of gear L by gears L and Lcauses the rotation of this worm. Two worm gears M and N, mounted onshafts m-and n carried in bearings in brackets M N mounted free on'studL engage the worm Z and are rotated by it. Each shaft m, n has at itsupper end a grooved friction roll m and n which engages and feeds thetube B. A grooved idler roll m supports the tube from below. It ismounted on a stud m which is supported in the brackets M N The bracketsM N are held in place at their upper ends by the pressure lever Q. Thislever is pivotally mounted on bracket M It has an opening 9 throughwhich the tube B passes and a slot-shaped extension 9 of said openingreceives a screw 9 which screws onto the bracket N thus looselyconnecting the lever and bracket. A weight Q on the lever Q tends tohold/the upper ends of the brackets M and N together and thus thefriction rolls m 71. are held against the tube B by a pressure which canbe adjusted by moving the weight Q The stud L carrying the gear Lcarries a lever P free thereon upon which lever I the stud Z for theintermediate gear L is mounted. P is an arm projecting from the uprightA and carrying a set screw 32' at its outer end on which runs the slot12 in the lever P. The gear L on sleeve D is a change gear and when adifferent pitch is needed for the winding operation another gear issubstituted for it, the screw p being first loosened so that theintermediate gear may be disengaged from it. After the new gear L is putin place the lever P is moved to remesh the intermediate gear L with newgear L and gear L and the screw 31 is again tightened.

Vhen a considerable portion of the Winding form extends from the holderso that there is chance fora good deal of friction to be developedbetween the wound ribbon and the walls of the spiral passage i usuallyuse a spreader R which is screwed into the iassa e so shown in Fi s. 1and 3. This spreader in its preferred form is shown in Figs. 7 and 8 andcomprises an inclosing portion 1' which is nearly circular and isprovided with a handle 7. The portion 1' has a greater external diameterthan the form and an opening through it larger in diameter than thediameter of the tube and ribbon combined but less than the diameter ofthe winding form. It is preferably thinned somewhat at its inner edge asat 7 so that it will take in the spiral passage of the winding form, butit is left thick enough to spread the passage somewhat. The outer. edger of the thinned portion is of about the diameter of the winding form sothat as the spreader is screwed into place this edge will rest on theperiphery of the winding form and so keep the spreader properlycentered. The spreader is preferably made malleable to adjust itself tothe pitch of the winding form.

It is very desirable that means shall be provided for coupling the endsof two tubes so that the winding operation will be continuousnotwithstanding the fact that short lengths of tube are being wound. Forthis purpose I have shown in Figs. 9, 10 and 11 a coupling means. Itcomprises a bolt S having a head at one end and a knurled nut S at theother. Upon the bolt S are two inner sleeves S S each having as shownfour eccentric or inclined surfaces 8 ending in a radial surface whichforms a shoulder 5 Outside of these sleeves are two other sleeves S Seach having a spiral cut 5 so that being made of spring steel they maybe opened slightly (see Fig. 10) though normally their edges are incontact. A washer s of substantially the diameter of the tubes B, Bseparates these sleeves and other washers may be used under the head ofthe bolt as shown. Between the inner and outer sleeves are rolls 8 whichare free to run on the eccentric surfaces 8 of the sleeves S S and arecaused so to do by the frictional contact with them of the outer sleevesS S and in so doing as they run up the eccentric incline toward theperiphery of theinner sleeve they cause the outer sleeve to spread thusincreasing its diameter.

To couple a piece of tube B to a piece B which is in the machine thecoupling is thrust into the end of the tube B up to the washer s andbeing of proper size to fit it closely upon giving the coupling a turnin the proper direction the outer sleeve S engaging the inner surface ofthe tube is held frictionally while its inner sleeve S in turning causesthe rolls 8 to run up the inclines s on sleeve S and so clamps thecoupling to the tube B. The end of another tube B is slipped onto theother end of this coupling up to the central washer s and by turning itcarefully the outer sleeve S engages the interior of tube B and beingturned with it causes the rolls 8 to run up the incline s on the innersleeve S thus clamping the coupling to tube B Thus the two tubes arecoupled and pass through the machines and are wound as a single lengthof tube. \Vhen the coupling passes out through the winding head, theribbon is cut at the joint and thereafter the coupling operation isreversed and the tubes are separated, and the coupling removed.

I have described above a simple form of mechanism for accomplishing thedesired object, but I do not mean to limit myself to the details hereindescribed. It is obvious to any one skilled in the art that in themotion of winding one thing upon another either the part to be wound orthe winding part may be rotated. As shown above the part to be wound isstationary while the winding mechanism rotates. It is also evident thatother means of applying power than those described may be used.' In factin various details the elements of the machine may be changed and yetcome within the limits of my invention.

As my machine is especially adapted for winding a ribbon on a radiatortube, I have referred to the part B as a tube. So far as the operationof the machine is concerned it should more properly be denominated acore as the machine will perform its operation as well upon a solid rodas upon a tube.

What I claim as my invention is 1. In a machine of the characterdescribed, the combination with means for feeding a core, of a ribbonreel mounted with its axis in parallel relation to said core and adaptedto carry a ribbon flatwise, rotating means for feeding said ribbon edge-Wise to and winding upon said core, said means comprising a rotary dielocated about said core and having a spiral guide passage thereincomprising several turns for setting, holding and spacing said ribbon,and means for varying the speed of rotation of the ribbon winding means.

2. In a machine of the character described, means for feeding a corelengthwise, a ribbon reel mounted with its axis in parallel relation tosaid core and adapted to carry a ribbon flatwise, and means for turningsaid ribbon from a flatwise to an edgewise position with relation tosaid core, and means for feeding it edgewise about said core and spacingit thereon, said spacing means surrounding said core and engaging saidribbon fora plurality of turns about said core, whereby said ribbon willbe wiped into shape.

3. In a machine of the character described, the combination with meansfor feeding a core longitudinally, of a ribbon reel having its axisconcentric with the axis of said core, rotating means for turning saidribbon from a flatwise to an edgewise posi tion with relation to saidcore during its passage from said reel to said core, means for windingsaid ribbon edgewise on said core, said means comprising a spiral dieadapted to guide said ribbon to said core and having several turnsthrough which said ribbon passes so that it will be set and held inedgewise position with relation to said core and spaced along thelatter, and means for varying the speed of rotation of theribbon-winding means.

4. In a machine of the character described, the combination with meansfor feeding a core longitudinally, of a ribbon reel having its axisconcentric with the axis of said core, rotating means for turning saidribbon from a flatwise to an edgewise position with relation to saidcore during its passage thereto, means for winding said ribbon edgewiseon said core, said means comprising a rotary die having a centralopening surrounding said core and having also a spiral ribbon passage,comprising several turns, communicating with said central opening, saiddie being adapted to guide said ribbon to said core and hold it inedgewise position with relation thereto and space it along said core,and means for varying the speed of rotation of the ribbon-winding means.

5. In a machine of the character described, the combination with meansfor feeding a core lengthwise, of a ribbon reel arranged concentric withsaid core and adapted to carry a ribbon fiatwise in parallel relation tosaid core, rotating means for feeding said ribbon from said reel andwinding it edgewise on said core, said means comprising a Winding formand means whereby said ribbon is engaged upon its two flat faces and itsouter edge during the process of Winding, and means for varying thespeed of rotation of the ribbon-winding means.

6. In a machine of the character described, the combination With meansfor feeding a core lengthwise, of a ribbon reel. arranged concentricwith said core and adapted to carry a ribbon flatwise in parallelrelation to said core, rotating means for feeding said ribbon from saidreel and winding it edgewise on said core, said means comprising awinding form and means whereby said ribbon is engaged upon its two flatfaces and its outer edge, said winding form being adapted to guide saidribbon. for a plurality of turns during the process of winding, andconnected means for varying the feed of said core and the speed ofrotation of ribbon winding means.

7. In a machine of the character described, in combination means forfeeding a core lengthwise, of a ribbon reel arranged concentric withsaid core and adapted to carry a ribbon fiatwise in parallel relation tothe axis of the core, ribbon-winding means comprising a rotating holderhaving a guideway for said ribbon, a rotating winding form concentricwith said core and provided with a spiral passage adapted to re ceiveseveral turns of said ribbon and wind it edgewise on said core, meansfor rotating said holder and said winding form, and connected means forvarying the feed of said core and the speed of rotation of ribbonwindingmeans.

8. In a machine of the character described, means for feeding a core andribbon-winding means comprising a holder having a guideway for saidribbon, a winding form concentric with said core and having a spiralpassage, said spiral passage registering with said guideway and aguidestrip forming one side of said guideway and extending into saidpassage and adapted to cooperate with said core to hold saidribbon as itengages said tube in a predetermined position.

9. In a machine of the character described, a rotating head comprising areel to receive a coil of flat ribbon, a guide roll on said head adaptedto give a partial turn to said ribbon, the axis of said roll being at anangle to the axis of said reel, in combination with a rotary windingdevice attached to saidhead and provided with an opening therethroughfor a core, means for feeding said core, means for rotating said head,and connected means for varying the feed of .said core and the speed ofrotation of said Winding device.

10. In a machine of the character de scribed, a ribbon-Winding mechanismcomprising a holdler and a winding form having a spiral passage thereinand an opening therethrough, said winding form being adjustable in saidholder lengthwise the axis thereof and said holder being provided withmeans Wherebysaid winding form may be clamped therein.

11. In a machine of the character described, a rotating head comprisinga reel to receive a coil of fiat ribbon, a guide roll on said reeladapted to give a partial turn to said ribbon, theaxis of said rollbeing at an angle to the axis of said reel in combination with a Windingmechanism attached to said reel and provided with an openingtherethrough for a core and means for feeding1 said core and means forrotating said ree 12. In a machine of the character de scribed, aribbon-Winding mechanism comprising a holder and a winding form having aspiral passage therein for a plurality of turns the walls of saidpassage being adapted to yield axially and means for holding saidpassage open as set, forth.

13. In a machine of the kind described, in combination with aribbon-winding mechanism, a core feeding mechanism comprising twopositively-driven rolls adapted to bear on the sides of the core andmeans for rotating them, and means for supporting the under surface ofsaid core.

14. In a machine of the kind described, in combination with aribbon-winding mechanism, a core-feeding mechanism comprising twopositively-driven rolls adapted to bear on the sides of the core andmeans for rotating them, and an idler roll located to support the undersurface of the core.

15. In a machine of the character described, in combination with aribbon-winding mechanism, a core-feeding mechanism comprising pivotedbrackets, shafts located therein, means for rotating said shafts locatedat the pivoted end of said brackets and friction rolls located at theswing ing ends of said shafts and means for causing the free ends ofsaid brackets to approach and for holding them in proximity whereby saidfriction rolls Will engage said core.

16. In a machine of the character described, a ribbon-winding mechanismand means for rotating it, comprising a sleeve, a reel and a windingform carried thereby, said reel being mounted on said sleeve, saidsleeve carrying a cam, a friction disk also mounted on said sleeve freeto turn thereon, said friction disk also carrying a cam to en gage thecam on said sleeve whereby said friction disk may move said sleeve and afriction roll engaging said friction disk, and means for rotating saidfriction roll.

17. In a machine of the character described, a ribbon-winding mechanismand means for rotating it, comprising a sleeve, a reel and a windingform carried thereby, said reel being mounted on said sleeve, saidsleeve carrying a cam, a friction disk also mounted on said sleeve freeto turn thereon, said friction disk also carrying a cam to en gage thecam on said sleeve whereby it may move said sleeve, and means forrotating said friction disk comprising a second friction disk having anaxis parallel with said sleeve and recessed at its center, a shafthaving a friction roll at each end, each engaging one of said frictiondisks, said shaft being supported radially to both friction disks, andmeans for moving said shaft lengthwise wherebysaid friction rolls willbe moved with relation to the centers of said friction disks to adjustthe speed of said first-named disk or to stop it, as described.

HENNING G. SAHLIN.

Witnesses:

M. J. LARKIN, H. G. WESLEY.

